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Finding the Fourth Proportional to 171,418.89, 257,294.19 and 82,734.84

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Solution

The fourth proportional to 171,418.89, 257,294.19 and 82,734.84 is: 124,182.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,418.89 : 257,294.19 = 82,734.84 : x
  2. Step 2: Convert to fraction form
    171,418.89/257,294.19 = 82,734.84/x
  3. Step 3: Cross multiply
    171,418.89x = 257,294.19 × 82,734.84
  4. Step 4: Simplify right side
    171,418.89x = 21,287,193,642.58
  5. Step 5: Solve for x
    x = 21,287,193,642.58/171,418.89
  6. Step 6: Final answer
    x = 124,182.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.